xiami.com

Checked 22 October 2026, 11:35 UTC · via 8.8.8.8
✗Problems found
24 passed 3 warnings 1 failed 3 info

Registration

info

.com generic · Alibaba Cloud Computing (Beijing) Co., Ltd. · expires 2027-04-26

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
26 April 2006
Last changed
12 March 2026
Expires
26 April 2027
Status
client transfer prohibited
Registry nameservers
ns4.taobao.com, ns5.taobao.com, ns6.taobao.com, ns7.taobao.com
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-04-26 #3
    The registration is valid until 2027-04-26 (186 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns4.taobao.com, ns5.taobao.com, ns6.taobao.com, ns7.taobao.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns4.taobao.com, ns5.taobao.com, ns6.taobao.com, ns7.taobao.com
NS in the zone
ns4.taobao.com, ns5.taobao.com, ns6.taobao.com, ns7.taobao.com
NameserverAddressesNetwork (AS)Glue
ns4.taobao.com47.241.207.15 47.88.74.33 47.88.74.35 47.241.207.13 2401:b180:4100::4AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN2401:b180:4100::4 47.241.207.13 47.241.207.15 47.88.74.33 47.88.74.35
ns5.taobao.com140.205.122.34 140.205.122.33 2401:b180:4100::5AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN140.205.122.33 140.205.122.34 2401:b180:4100::5
ns6.taobao.com140.205.122.35 140.205.122.36 2401:b180:4100::6AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN140.205.122.35 140.205.122.36 2401:b180:4100::6
ns7.taobao.com106.11.41.150 106.11.35.26 106.11.41.149 106.11.35.25 2401:b180:4100::7AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN106.11.35.25 106.11.35.26 106.11.41.149 106.11.41.150 2401:b180:4100::7

Checks

  • ✓ 4 nameservers #6
    Delegated to ns4.taobao.com, ns5.taobao.com, ns6.taobao.com, ns7.taobao.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2401:b180:4100::/48, while the other address family is spread over several networks.
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN): 7 addresses; AS45102 (ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN): 9 addresses.
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

16 of 16 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns4.taobao.com 47.241.207.15NOERROR, 181 ms, authoritativenoyes / yesrefused-
ns4.taobao.com 47.88.74.33NOERROR, 162 ms, authoritativenoyes / yesrefused-
ns4.taobao.com 47.88.74.35NOERROR, 270 ms, authoritativenoyes / yesrefused-
ns4.taobao.com 47.241.207.13NOERROR, 174 ms, authoritativenoyes / yesrefused-
ns4.taobao.com 2401:b180:4100::4NOERROR, 198 ms, authoritativenoyes / yesrefused-
ns5.taobao.com 140.205.122.34NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns5.taobao.com 140.205.122.33NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns5.taobao.com 2401:b180:4100::5NOERROR, 208 ms, authoritativenoyes / yesrefused-
ns6.taobao.com 140.205.122.35NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns6.taobao.com 140.205.122.36NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns6.taobao.com 2401:b180:4100::6NOERROR, 183 ms, authoritativenono / yesrefused-
ns7.taobao.com 106.11.41.150NOERROR, 152 ms, authoritativenoyes / yesrefused-
ns7.taobao.com 106.11.35.26NOERROR, 151 ms, authoritativenoyes / yesrefused-
ns7.taobao.com 106.11.41.149NOERROR, 163 ms, authoritativenoyes / yesrefused-
ns7.taobao.com 106.11.35.25NOERROR, 140 ms, authoritativenoyes / yesrefused-
ns7.taobao.com 2401:b180:4100::7NOERROR, 197 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 16 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns6.taobao.com (2401:b180:4100::6): dial tcp [2401:b180:4100::6]:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 2018011109 · primary ns4.taobao.com

Found

Primary (MNAME)
ns4.taobao.com
Contact (RNAME)
hostmaster.alibabadns.com
Serial
2018011109
Refresh / retry
3600 s / 1200 s
Expire
3600 s
Negative TTL
360 s

Serial per nameserver

NameserverSerial
ns4.taobao.com (47.241.207.15)2018011109
ns4.taobao.com (47.88.74.33)2018011109
ns4.taobao.com (47.88.74.35)2018011109
ns4.taobao.com (47.241.207.13)2018011109
ns4.taobao.com (2401:b180:4100::4)2018011109
ns5.taobao.com (140.205.122.34)2018011109
ns5.taobao.com (140.205.122.33)2018011109
ns5.taobao.com (2401:b180:4100::5)2018011109
ns6.taobao.com (140.205.122.35)2018011109
ns6.taobao.com (140.205.122.36)2018011109
ns6.taobao.com (2401:b180:4100::6)2018011109
ns7.taobao.com (106.11.41.150)2018011109
ns7.taobao.com (106.11.35.26)2018011109
ns7.taobao.com (106.11.41.149)2018011109
ns7.taobao.com (106.11.35.25)2018011109
ns7.taobao.com (2401:b180:4100::7)2018011109

Checks

  • ✓ Serial 2018011109 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    expire 1h is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 1h must be longer than refresh + retry. Current values: refresh 1h, retry 20m, expire 1h, negative TTL 6m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns4.taobao.com is one of the listed nameservers.
  • ✓ Contact hostmaster@alibabadns.com #25
    The SOA RNAME hostmaster.alibabadns.com means hostmaster@alibabadns.com.
  • ✓ Date-based serial #26
    The serial 2018011109 follows the YYYYMMDDnn convention (2018-01-11).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

warn

15 records at the apex

Found

Read from
47.241.207.15:53
TypeValueTTL
SOAns4.taobao.com. hostmaster.alibabadns.com. 2018011109 3600 1200 3600 3601200
NSns7.taobao.com.10800
NSns6.taobao.com.10800
NSns5.taobao.com.10800
NSns4.taobao.com.10800
A121.40.103.238120
MX5 mxn.mxhichina.com.600
MX10 mxw.mxhichina.com.600
TXT"_globalsign-domain-verification=RfEcSF_6gT1SPgyrDLfdH9igwWVhxCS9PpogKN79iH"600
TXT"v=spf1 mx mx:mx5.xiami.com ~all"600
TXT"v=spf1 mx mx:mx8.xiami.com ~all"600
TXT"v=spf1 mx mx:mx6.xiami.com ~all"600
TXT"v=spf1 include:spf.mxhichina.com -all"600
TXT"v=spf1 mx mx:mx2.xiami.com ~all"600
CAA0 issue "globalsign.com"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (2m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 3h; resolvers may use either.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: globalsign.com.